JavaScript is not currently enabled, but is required for full CodeSonar manual search and browse functionality.

If you are viewing this file in your hub's Web GUI, enable JavaScript in your browser: you will also need it for GUI functionality.

If you opened this file directly from disk, your browser may be directly suppressing JavaScript functionality: certain browsers perform this suppression on local files (but not files delivered by web servers) for security reasons.

CodeSonar® 9.2p0 CONFIDENTIAL CodeSecure Inc
C and C++

MATH.RANGE : 浮動小数点値域エラー

要旨

浮動小数点演算関数ライブラリを実行した結果、有効ではない値が返却されます。
このワーニングクラスは、他のMATH.RANGEニーモニックとして分類できない場合に検出されます。

プロパティ

クラス名 Floating Point Range Error
日本語クラス名 浮動小数点値域エラー
クラス分類 スタイル (style)
ニーモニック MATH.RANGE
カテゴリー
MisraC2025 MisraC2025:D.4.1 Run-time failures shall be minimized
  MisraC2025:D.4.11 The validity of values passed to library functions shall be checked
MisraC2023 MisraC2023:D.4.1 Run-time failures shall be minimized
  MisraC2023:D.4.11 The validity of values passed to library functions shall be checked
Misra2012 Misra2012:D.4.1 Run-time failures shall be minimized
  Misra2012:D.4.11 The validity of values passed to library functions shall be checked
Misra2004 Misra2004:20.3 The validity of values passed to library functions shall be checked
AUTOSARC++14 AUTOSARC++14:A0-4-4 Range, domain and pole errors shall be checked when using math functions.
CWE CWE:628 Function Call with Incorrectly Specified Arguments
  CWE:687 Function Call With Incorrectly Specified Argument Value
  CWE:688 Function Call With Incorrect Variable or Reference as Argument
CERT-C CERT-C:FLP32-C Prevent or detect domain and range errors in math functions
OWASP-2021 OWASP-2021:A4 Insecure design
OWASP-2025 OWASP-2025:A06 Insecure Design
対応言語 C および C++ で利用可能です。
有効/無効設定 このワーニングクラスのチェックはデフォルトで有効になっています。チェックを無効にするにはプロジェクト設定ファイル （configuration file）に以下の WARNING_FILTER ルールを追加してください。 
WARNING_FILTER += discard class="Floating Point Range Error"

ワーニングを引き起こす関数

CodeSonar ships with library models that allow it to functions such as libm atanh() that compute a mathematical function whose result is unrepresentable for some inputs. If one of these functions is called with an unsuitable value in the input parameter position, a warning will be issued.

If you have created a custom library model for some function f() in terms of one of these existing models, calls to f() will also be capable of triggering Floating Point Range Error warnings.

例 

#include <math.h>

double call_atanh(double ind){
    double a = atanh(0.1);                /* ok */
    double b = atanh(1);   /* 'Floating Point Range Error' warning issued here */
    double c = atanh(10);  /* domain, rather than range, error: 'Argument Too High' (MATH.DOMAIN.TOOHIGH)
                            * warning issued here */
    double d = atanh(ind); /* EVIDENCED ONLY: 'Floating Point Range Error' warning issued here
                            * if CodeSonar has evidence that call_atanh() is called on a value equal to 1 or -1. */
    return a+b+c+d;
}

関連のある設定ファイルパラメータ

設定ファイルの以下のパラメータがこのワーニングクラスのチェックに影響します。

 

To report problems with this documentation, please visit https://support.codesecure.com/.